Blocks

Ronstans range of Acetal sheaves is moulded from specially modified ultra-violet resistant grade of material to provide a long service life in the...

Ronstans range of Acetal sheaves is moulded from specially modified ultra-violet resistant grade of material to provide a long service life in the...

Self-contained sheaves are designed for sailors to use in custom applications.The Micro, Bullet and Big Bullet sheaves are Delrin with Delrin ball ...

Springs are used to support blocks on padeyes, eye-straps, bases and traveller cars. Keeps blocks from hitting the deck. Features: A: 64mm B: 35mm ...

Springs are used to support blocks on padeyes, eye-straps, bases and traveller cars. Keeps blocks from hitting the deck. Features: A: 25mm B: 19mm ...

Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Applications: Typically used i...

Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. When mounted in an inverted posit...

Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. When mounted in an inverted posit...

Ronstan manufactures an extensive range of sheave boxes for use with rope and wire. Plain bearing sheaves are ideal for halyards and other applica...

Precision moulded Acetal sheaves running on Acetal ball bearings provide high performance & low friction. The 2-stage ball bearing system prov...

Sheaves have a deep groove to cradle 5mm (3/16") diam. wire. Applications: Ideal for small runabouts where hydraulic steering is not needed. ...

16mm AirBlocks offer very high working loads in an extremely small, lightweight block.These diminutive blocks feature a patented bearing system usi...

16mm AirBlocks offer very high working loads in an extremely small, lightweight block.These diminutive blocks feature a patented bearing system usi...

Micro blocks are small, lightweight, free-running blocks. They are ideal for use on sailboards, smaller dinghies, and for lightly loaded control li...

Yacht sheave boxes are ideal for halyard exit and entry boxes with special side flanges to minimise friction. HA8A have a nylon casing and alloy s...

Lightweight. Plain bearing block 16mm micro block Features: Length: 16mm Rope - Max 5mm, Sheave - 16mm diatemter. Breaking Load - 275kg Safe worki...

The Selden dinghy range of sheave boxes covers all requirements, from standard jib, spinnaker and topping lift sheave boxes, to lower halyard exit ...

The patent-pending T2 Ratchamatic is Harken ’??s newest block to feature the T2 line ’??s styling and soft-attachment system. Very light weight th...

Quite simply, Ronstan Ratchet Orbit Blocks ’?½ have the highest holding power available. The sophisticated NC-machined sheave features Generation ...

Now you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with...

Quite simply, Ronstan Ratchet Orbit Blocks ’?½ have the highest holding power available. The sophisticated NC-machined sheave features Generation ...

Quite simply, Ronstan Ratchet Orbit Blocks ’?½ have the highest holding power available. The sophisticated NC-machined sheave features Generation ...

Quite simply, Ronstan Ratchet Orbit Blocks ’?½ have the highest holding power available. The sophisticated NC-machined sheave features Generation 2...

For dinghy and keelboat main sheets and spinnaker sheets. Makes it easy to advance your grip when hauling in the sheet. The perfect combination of...

Awesome ratchet block holding power Quite simply, Ronstan Ratchet Orbit Blocks ’?½ have the highest holding power available. The sophisticated NC-...

Awesome ratchet block holding power Quite simply, Ronstan Ratchet Orbit Blocks ’?½ have the highest holding power available. The sophisticated NC-...

Awesome ratchet block holding power Quite simply, Ronstan Ratchet Orbit Blocks ’?½ have the highest holding power available. The sophisticated NC-m...

The Carbo Ratchamatic© is a load-sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet a...

Carbo AirBlock© line. This new ratchets 40mm and is useful for all ratchet applications on dinghies and keelboats.Ratchets feature lightweight Nylo...

Carbo AirBlock© line. This new ratchets 57mm and is useful for all ratchet applications on dinghies and keelboats.Ratchets feature lightweight Nylo...

The Midrange Hexaratchet offers a holding power of 8:1 at 180 degrees of wrap, yet allows crew to ease line instantly. An on/off switch disengages...

The Midrange Hexaratchet offers a holding power of 8:1 at 180 degrees of wrap, yet allows crew to ease line instantly. An on/off switch disengages...

Awesome ratchet block holding power Quite simply, Ronstan Ratchet Orbit Blocks ’?½ have the highest holding power available. The sophisticated NC-...

Awesome ratchet block holding power Quite simply, Ronstan Ratchet Orbit Blocks ’?½ have the highest holding power available. The sophisticated N...

Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers.Ideal for high load applications....

BLOCKS MADE FOR PERFECT INTERACTIONSeld¸n blocks give you the benefits of a high strength to weight ratio. Seld¸n only use top quality materials li...